Post binder mechanism



March 9, 1948. J, SCHADE POST BINDER MECHANISM 2 sheets-sheet 1 FiledApril 15, 1946 llllllll INVENTOR- Jobw 60MB:

ATTOR EYS March 9, 1948. J. SCHADE 2,437,617

POST BINDER MECHANISM Filed April 15, 1946 2 Sheets-Sheet 2 INVENT ORJohw Jamal TTORN Y5 Patented Mar. 9, 1243 2,437,617- ros'r- BIN MEQHAFQY J ch1 had l i ke s-(a i to N t a1 Blank Book Company, Holyohe,Ma's's. ,a corporation of Massachusetts Application Aprillfi, 1946,Serial No. 662,252

This invention relates to improvements in post binders of the samegeneral type, as that shown by prior patent to Schade No. 2,2 llj,5l 7ofl9 4= 0 and other granted patents, such as Patent No. 2,125,048 of1938 to G. E. Hamlin.

The purpose is to provide a better latch mechanism for binding andreleasing the posts in the binder, The improved binder is better fromthe users standpoint in that it is more convenient to use, is not solikely to get out of order, and it will last longer without repair orreplacement of parts. While it may cost a little more for the maker,this can not be anywhere near enough to offset the goodwill he will getby furnishing the user with a better operating structure to last longerthan the prior art binder.

The improvement consists in the detail relation of parts making the newcombination. An example of the combination and the detail relation tomake it, is given by the drawings and the description.

Fig, 1 is a back view of the binder assembly with the cover of the topbinder tube cut away to show the parts of the mechanism;

Fig. 2 is taken on line 22 of Fig. l to show a top view of the mechanismin the binder tube;

Fig. 3 is a View on line 3--3 of Fig. 1 to show the binder tube andlatch releasing slide in cross section; I

Fig, 4 is a perspective view of the releasing slide;

Fig. 5 is a fragmentary detail View showing a latch plate cammed inpost-releasing position; and

Fig. 6 is a fragmentary end view to show a modified form of a postreleasing actuator means.

As shown in Fig. l a pack of loose leaf sheets I is threaded on posts 2between the lower binder tpbe or bar 3 and upper binder tube 4. Theseiunction as holding strips or bars. As shown in Fig. 3, they are made byturning a fiat metal strip into a flattened tube form.

Posts 2 are suitably secured to binder tube 3 by rivets or otherwise asdesired. Tube 5 is provided with holes 6 to receive the posts 2[ Thistube is releasably secured to the posts by postlatching mechanism to bedescribed.

A latch release slide '7 shown in perspective by Fig. 4, and in crosssection by Fig. 3 as it lies inside tube 4, is a shallow U-shaped metalstrip with the longitudinal portion 8 of inverted U- shape to formnarrow channeled portions 9 on each sid for the bearing surfaces toslide in binder tube 4. Slide 1 is positioned in tube 4 (Figs. 1 and 3)and is slida-ble in this tube A between a post-latching and.post-releasing position.

A latch plate as with a post hole H, Fi s. 1 2 and 5, has a narrowedportion H! with two prongs l3, Fig. 2, by which plate It is pivoted on aframe tame up 2 5. r h n d el as resides w th re ee i s t 2- Th itta e;r h a t l are. c in e-sn re biibt em lh ram 5. seated n' e better; 9 b 4and me I thereto by u ta le means. sin e the igh if t e. fpr fsbt a msQi L were i r es than h mine d mens p f th b nd tube, I re e is lumb aei init oeb of th e fraine iii s that when the frame isplaced i p iiq ith was sw p s Q b r ed Q1. um ed in a at 99 5 Vi fi slot thereby holdingthe frame against longitudirial movement in the tube." Theframesfhowevel, "c'e' tp aibe a if preferred. by retainin Screwsmentioned, t e arm or e 'l a e. of a pr xim te h i he as the interioroi'tube 4. "Thereforefth'e rongs maybe fastened in pla [3 are f n tche 1h i l fi i i t ihetf sa i i list n plate It is normally held in a cantedoo te i t h fie"psi i'p i; in Figt'i; mechanism for "doingthisis bestshown i the en 'dview of Fig.5, the 'plat'l-ll' in thatview e, gin postreleasing posi ion." A spring we the case a the "fr melsfa d y a hook isof metal cut and'brit'fror'ri the narrowed portion r t an" adjacent itshole g i." The spring. is tends to pull the plate It! downwardlycantingthe plate'on its'pivot in frame i5 as described.

latching ass'embly as described is provided for each post 2"andfasshownin Figs, 1 andz, each such assembly islocated' on the correspondingside of ejach pos't hole so that as the latch release slide Tisnioved-to'the right (see Figs, 1 and the slide will cause both plateHl'to .b'e cammd'into post releasing position'simultaneouslyina'wa'ytote described. It will'b e noted infFi'g. 4 that openings i9 and itprovided in'sli'deTstraddle the'latching units. portions 2|'alongsi-dethese' openings move with slidedfand wheiimovd with the slideto the rightfrom'thepositionin Fig. 1, camfthe latchplate m"cuter-"ngagement with the posts. Carri portions}! are formed from metal ofslide 1, Fig ff' lhey are bent "upwardly 'from the m; openings I -9"arid2B. "The openings are positioned in 'slide 1 new thelatchin is-s:ernbly. As shbwamm' portions 2] stand vertically'toiform inclinedplanes onwhioh a'latch plate l0 may ride. In this construction I haveturned the SlantingedgeS Of th cams 2|, as at 22ftd a, "arigle with theplaneof the vertical portions. In this'way Ihavep'ro'vided asmoothimt'al'surface'on which the latch plate ill may ride. I hei'e isless frictional resistance. Portions :23 "are iii rehea sin o e i L9. as21!! t s v as u des assassinate slide! in proper alignmentto' each framel5 for relative sliding movement.

Slide 1 is normally urged to permit. plates ID to grip posts 2, as inFig. 1. The slide is urged, as stated, by spring 24 fastened between ahook 25 punched from the metal of slide 1 and the anchor I1 of frame 15.A notch 26 is cut in the inner edge of opening 19 to accommodate thehook ll, Outward movement of slide 1 under tension of spring 24 is tothe left in Fig, 1, and is limited by the inner edge of opening (9striking against the edge of frame 15. On the end of slide 1 an actuator21 extends from the open end of tube 4.

To operate slide '1 to post release position, to cam the plates I out ofcanted position with respect to the posts, finger pressure on theactuator 2'! is exerted inwardly of tube 4. The tube 4 may be lifted ofithe posts when plates are put out of their canted positions by camportions 2|. Actuator 2'1 is formed by turning over the metal of slide 1or by providing any suitable cap therefor which may be pushed into theend of tube 4 against the spring action of spring 24.

A modified form of the post releasing device is shown in Fig. 6. In thisform both ends of tube 4 are capped, the same as the one shown. Anactuating button 28 in a slot 29 cut in the top of tube 4 is fixed to aslide lever 30 on slide 1 for moving the latter to post release positionagainst the action of spring 24.

By making the construction of parts for a post binding mechanism asdescribed above, a post binder of superior lasting qualities isprovided. The binder will endure hard usage without causing malfunctionand failure of parts. The simplicity in construction and ease inoperation of the latching and releasing elements make a smoothlyfunctioning article which will stand up longer in use and give moresatisfactory service than any prior devices, now known to me.

Having disclosed my invention, I claim:

1. In a post binder of the type having posts, a bottom bar holding theposts, a removable top tube with cross holes to receive the posts, andlatch mechanism in the tube to latch it on the posts, the combination ofa flattened top tube, a

sheet metal slide with a multiple open channel.

section arranged with a central inverted U- shape channel portion andnarrow U-shape portions on each side, the latter portions fitting thebottom and sides of the tube for longitudinal guided sliding movementwithout much friction, said slide having substantial openings for theposts in the sliding relation, bent vertical portions of the slideformed with slanting cam edges in the longitudinal relation to the tubeand adjacent the side edges of said openings, means including a springto hold said slide in one position of adjustment with relation to saidposts, a

latch plate for each post, means to pivot the latch plate for movementto horizontal and canted positions with relation to the post, such latchplate having a post hole with edges adapted to bind on the post incanted, and free the post in horizontal position, a spring for eachplate to urge it to canted position to hold said cam edges near saidplates when in canted position, and a finger actuated piece to move theslide to a second position of adjustment relative to said posts againstits spring means to move the cam edges against said plates and thelatter to horizontal position against their springs.

2. In a post binder of the type described the f combination of a toptube, a shallow channel section sheet metal slide fitting transverselyin the bottom of the tube for most of its length and adapted for fingeractuation, said slide having a reverse channel section bent up from itslower side, a substantial opening adjacent each end of the slide,vertical inclined cam portions struck up from the metal of saidreversechanneled portion and arranged longitudinally at the edges ofsaid opening, pivot supporting means adjacent said openings, a latchplate for each opening pivoted on said means, a spring for each plateurging it out of horizontal position into canting and latching positionwith relation to a post, said inclined cam portions adapted upon themovement of said slide to move the latch plates to horizontal andunlatching positions with relation to their posts, spring means normallyholding the parts in latching position, said slide and parts adapted tomove the plates to unlatching positions upon finger actuation of saidslide.

3. In a post binder of the type described the combination of a top tubehaving one of its ends open, a shallow multiple channel section sheetmetal slide with a reverse U-shape channel section bent up from itslower side leaving relatively narrow channels adjacent each of itsupright sides, said slide fitting longitudinally in said tube for mostof its length, a finger actuated piece attached to each slide andextending from said open end of the tube for moving said slide inwardlyof the tube on said narrow channeled portions from one position ofadjustment in the tube to a second position, said reverse channelsection being cut away to provide openings for registration of a post insaid openings in either position of adjustment, vertical inclined camportions struck up from the metal of the reverse channeled portionadjacent the edges of said openings and arranged longitudinally in thetube, a pivot supporting means fixed in said tube and arranged in saidopenings adjacent each said post a latch plate pivoted on each saidmeans, a spring attached to each said plate and said means to urge theplates to canted position with relation to said posts and grip the postsagainst removal of said tube, a spring means attached to said slide andthe adjacent pivot supporting means such spring normally urging saidslide outwardly of said tube open end, said adjacent pivoting meansholding the slide against further outward movement by contact with theinner edge of its adjacent slide opening whereby the slide and latchplate are normally in the first position of adjustment in post latchingrelation, said slide upon inward pressure of said finger piece beingadapted for moving said inclined cam portions to pivot the latch platesto horizontal position with relation to said posts whereby the posts maybe freed of the plates and said top tube may be removed from the posts.

JOHN SCI-IADE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,498,194 Newman June 17, 19241,557,279 Valkenburgh Oct. 13, 1925 2,125,048 Hamlin July 26, 19382,208,226 Nelson July 16, 1940

